[TRNSYS-users] Suction line heat exchanger component

David BRADLEY via TRNSYS-users trnsys-users at lists.onebuilding.org
Mon Jul 3 12:33:42 PDT 2017


Ravindra,

   Models for the expansion valve and heat exchangers for vapor 
compression cycles don't exist in TRNSYS as far as I am aware. In order 
to write such a model you would need to know what refrigerant is being 
used in the cycle and you'd need a routine to give you refrigerant 
properties.

   I am not sure if TRNSYS is the right tool to use to model a vapor 
compression cycle. Typically we work with systems in TRNSYS that have 
transient behavior on the order of a minute or longer. The transients in 
the individual components of a vapor compression cycle are much shorter 
than that. At one minute intervals such a refrigeration cycle looks 
quite steady state and so we typically use performance maps to model 
them. When I need to look inside the cycle, I typically use a program 
called EES (Engineering Equation Solver).

kind regards,

  David



On 06/30/2017 01:51, v ravindra via TRNSYS-users wrote:
> Which component (Type) can i use to represent a Suction line heat 
> exchanger having sub cooling and super heating while setting up a 
> Vapour compression cycle in TRNSYS 17.
>
> V.Ravindra
>
>
>
> _______________________________________________
> TRNSYS-users mailing list
> TRNSYS-users at lists.onebuilding.org
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-- 
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
22 North Carroll Street - suite 370
Madison, WI  53703 USA

P:+1.608.274.2577
F:+1.608.278.1475
d.bradley at tess-inc.com

http://www.tess-inc.com
http://www.trnsys.com

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